A pen text engine with font called "5x7 printable ASCII". (supports all the printable ASCII characters with glyph dimensions targeting 5x7 pixels.) It's optimised to be visually as-small-as-possible while still being legible. The code is also very simple so it can be used in many projects. Costume numbers are used to look up character data in the list. I highly recommend using this version this and not my previous PTEs.